Question

4.8r + 49.3<74.5 solve for r
​

Answer 1

`r < 5.25`

Explanation:

we have

`4.8r + 49.3 < 74.5`

Solve for r

Subtract 49.3 both sides

`4.8r + 49.3-49.3 < 74.5-49.3`

`4.8r < 25.2`

Divide by 4.8 both sides

`4.8r/4.8 < 25.2/4.8`

`r < 5.25`

The solution is the interval -----> (-∞,5.25)

All real numbers less than 5.25

In a number line, is the shaded area at left of r=5.25 (open circle)

see the attached figure to better understand the problem